Hooker BlackHeart Clamshell Engine Mounts and Polyurethane Engine Mount Inserts are now available for a variety of GM applications that utilize the common 2292 aftermarket mounts. The clamshell housings are the perfect solution to flimsy, lightweight aftermarket options. They feature a two piece design with heavy-duty, 11-gauge steel construction and a durable powder coated finish. Hooker BlackHeart Polyurethane Engine Mount Inserts have been designed with durability, performance, and ease of installation in mind. The inserts are available in both black and red, and feature factory style indexing tabs to help with alignment during installation.